xref: /freebsd/sys/netgraph/ng_vlan.h (revision b9f654b163bce26de79705e77b872427c9f2afa1)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2003 IPNET Internet Communication Company
5  * Copyright (c) 2011 - 2012 Rozhuk Ivan <rozhuk.im@gmail.com>
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * Author: Ruslan Ermilov <ru@FreeBSD.org>
30  *
31  * $FreeBSD$
32  */
33 
34 #ifndef _NETGRAPH_NG_VLAN_H_
35 #define	_NETGRAPH_NG_VLAN_H_
36 
37 /* Using "vlan" in addfilter and gettable messages. 2012.01 */
38 #define	NG_VLAN_USE_OLD_VLAN_NAME 1
39 
40 /* Node type name and magic cookie. */
41 #define	NG_VLAN_NODE_TYPE	"vlan"
42 #define	NGM_VLAN_COOKIE		1068486472
43 
44 /* Hook names. */
45 #define	NG_VLAN_HOOK_DOWNSTREAM	"downstream"
46 #define	NG_VLAN_HOOK_NOMATCH	"nomatch"
47 
48 /* Netgraph commands. */
49 enum {
50 	NGM_VLAN_ADD_FILTER = 1,
51 	NGM_VLAN_DEL_FILTER,
52 	NGM_VLAN_GET_TABLE,
53 	NGM_VLAN_DEL_VID_FLT,
54 	NGM_VLAN_GET_DECAP,
55 	NGM_VLAN_SET_DECAP,
56 	NGM_VLAN_GET_ENCAP,
57 	NGM_VLAN_SET_ENCAP,
58 	NGM_VLAN_GET_ENCAP_PROTO,
59 	NGM_VLAN_SET_ENCAP_PROTO,
60 };
61 
62 #define	VLAN_ENCAP_FROM_FILTER	0x00000001
63 #define	VLAN_ENCAP_FROM_NOMATCH	0x00000002
64 
65 /* For NGM_VLAN_ADD_FILTER control message. */
66 struct ng_vlan_filter {
67 	char		hook_name[NG_HOOKSIZ];
68 #ifdef	NG_VLAN_USE_OLD_VLAN_NAME
69 	uint16_t	vlan;	/* VLAN - same as vid, oldname, deprecated. */
70 #endif
71 	uint16_t	vid;	/* VID - VLAN Identifier. */
72 	uint8_t		pcp;	/* PCP - Priority Code Point. */
73 	uint8_t		cfi;	/* CFI - Canonical Format Indicator. */
74 };
75 
76 /* Keep this in sync with the above structure definition.  */
77 #ifdef	NG_VLAN_USE_OLD_VLAN_NAME
78 #define	NG_VLAN_FILTER_FIELDS	{				\
79 	{ "hook",	&ng_parse_hookbuf_type	},		\
80 	{ "vlan",	&ng_parse_uint16_type	},		\
81 	{ "vid",	&ng_parse_uint16_type	},		\
82 	{ "pcp",	&ng_parse_uint8_type	},		\
83 	{ "cfi",	&ng_parse_uint8_type	},		\
84 	{ NULL }						\
85 }
86 #else
87 #define	NG_VLAN_FILTER_FIELDS	{				\
88 	{ "hook",	&ng_parse_hookbuf_type	},		\
89 	{ "vid",	&ng_parse_uint16_type	},		\
90 	{ "pcp",	&ng_parse_uint8_type	},		\
91 	{ "cfi",	&ng_parse_uint8_type	},		\
92 	{ NULL }						\
93 }
94 #endif
95 
96 
97 /* Structure returned by NGM_VLAN_GET_TABLE. */
98 struct ng_vlan_table {
99 	u_int32_t	n;
100 	struct ng_vlan_filter filter[];
101 };
102 
103 /* Keep this in sync with the above structure definition. */
104 #define	NG_VLAN_TABLE_FIELDS	{				\
105 	{ "n",		&ng_parse_uint32_type },		\
106 	{ "filter",	&ng_vlan_table_array_type },		\
107 	{ NULL }						\
108 }
109 
110 #endif /* _NETGRAPH_NG_VLAN_H_ */
111